I think the cop-turned-vigilante was interesting, but it wasn't Casey Jones. He was also far too calm and had his life together which is nothing like the character in any version (at least all the ones I've seen/read).

However he does remind me of another character from the comics called Nobody (well, at least that was his vigilante name, I can't remember his real name). He even looks kind of like him so if they had made him Nobody I would have been a lot more receptive to this portrayal.